Double-indexed book.



G. R. GILLETTE. 000m INDEXED BOOK. APPLICATION FILED NOV. H. 1916.

Patented J an. 7, 1919.

i AEN FFIQ.

GEORGE E. GILLETTE, BOSTON, MA$SACHUSETTS, ASSIGNOR 'IO FREDERICK M. WEBSTER, 0F SPRINGFIELD, MASSACHUSETTS.

DOUBLE-INDEXED BOOK.

Specification of Letters Patent.

Patented Jan. '7, 1919.

Application filed November 11, 1916. Serial No. 130,700.

To all whom it may concern:

Be it known that I, Gnonon R. GILLETTE, a citizen of the United States, and resident of Boston, Suffolk county, Mass, have invented new and useful Improvements in Double Indexed Books, of Whichthe following is a specification, reference being had to the accompanying drawing and letters of reference marked thereon.

The object of my invention is to provide a double indexed book especially arranged so that for illustration various months or other fixed time may be immediately found and so that the various days or weeks or other definite periods may be quickly and conveniently turned to after the principal Y time or period is found from the principal index.

I accomplish the object of my invention by the construction and arrangement herein shown as one embodiment of my invention.

In the accompanying drawing in which like letters of reference indicate like parts I illustrate in perspective a book having blank spaces for memoranda upon each sheet and in this instance divided into days so that one sheet carries the days of a single week' and I provide as many leaves 0 for each month as there are weeks and parts of weeks in that month. To illustrate, as there are three full weeks and parts of two weeks in January 1917 I provide five sheets under the indexed title sheet I) of January and the lower right hand corner of these weekly sheets are cut oil diagonally so as to provide an index for each week so that for illustration if a party wishes to quickly turn to May 8th 1917 the thumb will be placed on the principal index sheet I) marked Mav and the leaves above turned away thus disclosing the first page of the memoranda sheets 0 for May and then the thumb or finger being placed on the index edge for the week of May 6-12 1917. thus readily finding the sheet of the date desired. The same method of course will be followed in each case so that with the principal index sheets I) and the sub-index sheets 0 arranged in the manner shown a memoranda or reference book is provided in which the index is so arranged that the pages it is desired to find may be quickly and easily turned to. It will readily be seen that thesame arrangement may be employed with other markings and books and that the details of the arrangement may be varied without departing from my invention. The embodiment of my invention in the specific construction herein shown is designed to illustrate one means of utilizing my invention.

Having therefore described my invention what I claim and desire to secure by Letters Patent is:

A double indexed book comprising leaves grouped into months by vertically and horizontally arranged top indices, the leaves of the monthly groups being stepped, both vertically and horizontally, at the top by cutting each succeeding group in each set of vertical groups deeper than the preceding group. and each succeeding bottom group in each set of horizontal groups deeper than the uppermost group in the preceding set of vertical groups, there being a plurality of leaves for each month in the group under the index of said month, said monthly leaves corresponding in number to the weeks and parts of weeks in the month, and the free corners of said leaves at the bottom being stepped and indexed to denote the weeks and parts thereof represented thereby. the first of said leaves representing a week or part thereof exposing the weekly indices on the following leaves in the month, the second of said leaves exposing the weekly indices on the following leaves in said month, and so on until the last leaf in any given month is reached, which last leaf covers the weekly indiccs on the leaves of the following month if any.

GEO. R. GILLETTE.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Eatente,

Washington, D. G. 

